# -*- coding: utf-8 -*-#
#-------------------------------------------------------------------------------
# 建立者:        Young  
# Name:         demo4.05
# Description:
# Author:       $赵怡蕾
# Date:         2019/1/28
#-------------------------------------------------------------------------------

names = ["Bill","Mary","Jack"]
print(names[0])                    # 运行结果：Bill
print(names[-1])                   # 运行结果：Jack
print(names[-2])                   #　运行结果：Mary